Wordnet 3.0
NOUN (1)
1. 
 the measure of an economy adopted by the United States in 1991; 
 the total market values of goods and services produced by workers and capital within a nation's borders during a given period (usually 1 year); 
[syn: gross domestic product, GDP]
WordNet (r) 3.0 (2006):
GDP
    n 1: the measure of an economy adopted by the United States in
         1991; the total market values of goods and services
         produced by workers and capital within a nation's borders
         during a given period (usually 1 year) [syn: gross
         domestic product, GDP]